EP2904352A1 - Lecture parallèle d'un capteur analogique par deux unités de commande - Google Patents

Lecture parallèle d'un capteur analogique par deux unités de commande

Info

Publication number
EP2904352A1
EP2904352A1 EP13770415.1A EP13770415A EP2904352A1 EP 2904352 A1 EP2904352 A1 EP 2904352A1 EP 13770415 A EP13770415 A EP 13770415A EP 2904352 A1 EP2904352 A1 EP 2904352A1
Authority
EP
European Patent Office
Prior art keywords
control unit
sensor element
signal output
sensor
ground terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13770415.1A
Other languages
German (de)
English (en)
Inventor
Alex Grossmann
Udo Sieber
Daniel Henning
Thomas Klotzbuecher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2904352A1 publication Critical patent/EP2904352A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
    • B60K2026/023—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics with electrical means to generate counter force or torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position

Definitions

  • the present invention relates to sensor technology in vehicles.
  • the present invention relates to a parallel reading of an analog sensor by two control units and thus the parallel transmission of the sensor signal to both control units.
  • the present invention relates to an arrangement for reading a sensor element in a vehicle and a vehicle, in particular automobile, more particularly electric or hybrid vehicle, with an inventive arrangement.
  • Sensors in vehicles record analog and digital measured values and transmit them to other electronic components or devices with suitable means.
  • Control units in the vehicle continue. These use the measurement data to influence the vehicle behavior and in particular the operation of the
  • a measured variable of a specific sensor not only of one, but of a plurality, for example, two or three, different
  • Control units is needed.
  • these control units can be positioned at different locations in the vehicle, so that a firm coupling of the ground connection of the plurality of control units is often not well enough possible.
  • an analog sensor signal often can not simply be branched and routed to the plurality of controllers because a mass offset between the controllers could result in a potentially significant measurement error. At least the measured values of the sensor signal may deviate due to the mass offset.
  • an identical measured variable is divided among a plurality of control units in such a way that either a second sensor is provided for the same measured variable which is then from a second controller or a second
  • Control unit is read directly.
  • the measured value determined by a control unit can be determined using suitable
  • Communication interfaces are passed on to other control units. While the installation of a second sensor sometimes entails considerable additional costs and may also be difficult to realize due to spatial conditions, the transmission of the measured value via a data bus usually causes a not insignificant signal delay due to the required transmission time. Such a signal delay may not be acceptable if the measured variable directly intervenes in a control loop.
  • One aspect of the present invention may thus be seen in parallel carrying out a transmission of a measurement signal to a plurality of control units, which is less expensive and / or more real-time suitable than conventional implementations.
  • Electric or hybrid vehicle comprising an arrangement according to the invention indicated according to the independent claims.
  • a sensor element is used which is initially in the
  • a connection may consist essentially of a direct, conductive connection between the sensor element and the control unit.
  • a sensor element has a signal output and two
  • a common ground connection with the sensor element and a positive supply voltage the Provide sensor element for example, in the case that it is an active sensor element.
  • the output measurement signal can be digitized in the control unit, in particular using an analog / digital converter.
  • a second control unit may be provided, which may however be arranged at a different location in the vehicle, in particular significantly spaced from the first control unit. By this different arrangement location may now occur a ground offset between the ground terminals of the first control unit and the second control unit.
  • a mass offset may represent a non-identical ground potential, in particular like a voltage difference between the
  • the individual control units in particular due to the mass offset, it would be possible for the individual control units, in particular due to the mass offset, to determine a different measured value from the sensor signal, as a result of which the individual control units would have different circumstances due to the measured value in the vehicle go out and different or possibly even catastrophic operating conditions of individual
  • the signal output of the sensor element can be transmitted to the second control unit, wherein in particular reference ground and / or
  • Voltage supply of the sensor element may be forwarded to the second control unit. Since these voltages may possibly be below the reference ground of the second control unit or a
  • Reference voltage of an analog / digital converter may exceed the second control unit, according to the invention at least one voltage divider is provided to read the signal of the sensor element in the second control unit.
  • Connections of the second control unit are connected. These connections can in particular be transmitted to the analog / digital converter of the second control unit.
  • the second control unit can turn a
  • a data bus connection may be provided between the two control units, for example a CAN bus connection for transferring information from the first control unit to the second control unit, in particular information relating to the sensor measurement value, which may be used to specify tolerances of the voltage divider of the second control unit to compensate for a balance.
  • a CAN bus connection for transferring information from the first control unit to the second control unit, in particular information relating to the sensor measurement value, which may be used to specify tolerances of the voltage divider of the second control unit to compensate for a balance.
  • Control unit essentially comparable fast as the first
  • Control unit while a comparison via a data bus connection between the control units also slower, in particular much slower can be done. Delay times due to digitization and / or processing of the measured value before the information is forwarded to the second control unit by the first control unit for adjustment may not be essentially critical.
  • Supply voltage and the ground signal are omitted and, for example, only ground and signal output of the sensor element,
  • Show it 1 shows an exemplary embodiment of a circuit diagram of a
  • FIG. 2 shows a further embodiment of a circuit diagram of an arrangement for reading out a sensor element according to the present invention
  • FIG. 1 an exemplary embodiment of a circuit diagram of an arrangement for reading out a sensor element according to the present invention is shown.
  • FIG. 1 shows an arrangement 2 with a sensor element 4 and two
  • Sensor element 4 has, by way of example, three connections, a signal output 8a, a supply voltage connection 8b and a ground connection 8c.
  • Control unit 16a has comparable connections 10a, b, c. By way of example, the connections are connected directly between the sensor element 4 and the control unit 6a in FIG.
  • Controller 1 6a has a digital / analog converter 14 for digitizing the sensor signal 8a and a power supply 16 using which
  • the sensor element 4 can be operated as an active sensor. Further processing steps of the signal 8c in the control unit 6a are not shown in detail in FIG.
  • the control unit 6a has a connection to a
  • Control unit 2 6b picks up at least the signal terminal 8a of sensor element 4 and forwards it using a series resistor 22 to an analog / digital converter 14b of the control unit 2 6b on.
  • Control unit 2 6b has for this purpose a connection 12a.
  • the connections 8b, c of the sensor element 4 can likewise be connected to comparable connections 12b, c of the control unit 2 6b in the suitable analog / digital converters 14b, likewise via suitable series resistors 22.
  • Control unit 2 6b has, as an example, a power supply 16b and a ground connection 12e, between which connections using the Resistors 24,26 a voltage divider is built.
  • the voltage divider is in this case formed together with the respective input resistor 22.
  • the signal 8a may be connected to the corresponding input 12a of the analog-to-digital converter 14b of the control unit 2 6b using the voltage divider formed of the resistors 22, 24, 26.
  • resistor 22 R m with about 10 kQ and resistors 24.26 R V D each with about 100 kQ. This results in a relatively weak coupling of the control units 6a, b to each other.
  • the evaluation of the signal 8a in the control unit 2 6b takes place according to the following formula:
  • FIG. 2 Another embodiment of a circuit diagram of an arrangement for reading out a sensor element according to the present invention is shown.
  • FIG. 2 differs from FIG. 1 only in that sensor element 4 already has a parallel signal output 8a, thus over several
  • Signal outputs 8a, a ' has the same signal output.
  • the inventive arrangement 2 allows the connection of the second Control unit 6b using the terminal 8a '. Since, in turn, the tap of the terminals 8b, c of the sensor element 4 to the control unit 2 6b is optional, it may be sufficient to lay only one line from the terminal 8a 'to the control unit 2 6b in the vehicle.
  • a concrete use of the arrangement according to the invention is the use for an active accelerator pedal.
  • the information about the pedal position may be used both in a central engine control unit and in a local control electronics in the active accelerator pedal on site, for example, for a force feedback application.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

Dispositif (2) pour la lecture d'un élément sensible (4) dans un véhicule, qui comporte un élément sensible (4) pourvu d'au moins une sortie (8a) de signaux analogiques; une première unité de commande (6a) pourvue d'au moins une première entrée (10a) de signaux; et au moins une deuxième unité de commande (6b) pourvue d'au moins une deuxième entrée (12a) de signaux; la sortie (8a) de signaux étant reliée à la première entrée (10a) de signaux. Ledit dispositif est caractérisé en ce que la sortie (8a) de signaux est reliée à la deuxième entrée (12a) de signaux, la deuxième entrée (12a) de signaux étant reliée à la sortie (8a) de signaux par l'intermédiaire d'un diviseur de tension (22).
EP13770415.1A 2012-10-08 2013-09-17 Lecture parallèle d'un capteur analogique par deux unités de commande Withdrawn EP2904352A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218274.8A DE102012218274A1 (de) 2012-10-08 2012-10-08 Paralleles Auslesen eines analogen Sensors durch zwei Steuereinheiten
PCT/EP2013/069260 WO2014056683A1 (fr) 2012-10-08 2013-09-17 Lecture parallèle d'un capteur analogique par deux unités de commande

Publications (1)

Publication Number Publication Date
EP2904352A1 true EP2904352A1 (fr) 2015-08-12

Family

ID=49261497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13770415.1A Withdrawn EP2904352A1 (fr) 2012-10-08 2013-09-17 Lecture parallèle d'un capteur analogique par deux unités de commande

Country Status (5)

Country Link
US (1) US9360344B2 (fr)
EP (1) EP2904352A1 (fr)
KR (1) KR20150063415A (fr)
DE (1) DE102012218274A1 (fr)
WO (1) WO2014056683A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223895A1 (de) 2014-11-24 2016-05-25 Continental Teves Ag & Co. Ohg Elektronische Anordnung in einem Kraftfahrzeug
DE102018204598A1 (de) * 2018-03-27 2019-10-02 Robert Bosch Gmbh Sensoranordnung
DE102018220065A1 (de) * 2018-11-22 2020-05-28 Robert Bosch Gmbh Betriebsverfahren für eine redundante Sensoranordnung eines Fahrzeugsystems und korrespondierende redundante Sensoranordnung
CN110733339B (zh) * 2019-10-09 2021-11-30 郑州宇通重工有限公司 一种油门踏板的信号处理方法
DE102020107706A1 (de) * 2020-03-20 2021-09-23 HELLA GmbH & Co. KGaA Bremssystem und Fahrzeug mit dem Bremssystem
CN111525934B (zh) * 2020-04-14 2022-04-29 深圳智造谷工业互联网创新中心有限公司 基于5g的无线传感器
CN117847200A (zh) * 2022-10-09 2024-04-09 华为技术有限公司 一种控制***、传感***、传感器、控制器及终端设备

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DE4027031A1 (de) 1990-08-27 1992-03-05 Vdo Schindling Sensoranordnung zur auswertung von masseversatzbehafteten signalen eines fremdspannungsversorgten sensors
US6091201A (en) * 1996-07-22 2000-07-18 Ford Motor Company Method and apparatus for accommodating multiple dimming strategies
US7837278B2 (en) * 2007-05-30 2010-11-23 Haldex Brake Products Ab Redundant brake actuators for fail safe brake system
EP2194257A1 (fr) * 2008-12-05 2010-06-09 Delphi Technologies Holding S.à.r.l. Procédé de commande d'un système de moteur d'un véhicule
JP5675016B2 (ja) * 2010-12-01 2015-02-25 株式会社ミクニ アクセルペダル装置
US9444247B2 (en) * 2011-05-17 2016-09-13 Samsung Electronics Co., Ltd. Apparatus and method of protecting power receiver of wireless power transmission system

Non-Patent Citations (1)

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Title
See references of WO2014056683A1 *

Also Published As

Publication number Publication date
WO2014056683A1 (fr) 2014-04-17
US20150253152A1 (en) 2015-09-10
US9360344B2 (en) 2016-06-07
DE102012218274A1 (de) 2014-04-10
KR20150063415A (ko) 2015-06-09

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